EP2875183B1 - Installation for manufacturing security paper - Google Patents

Installation for manufacturing security paper Download PDF

Info

Publication number
EP2875183B1
EP2875183B1 EP13734777.9A EP13734777A EP2875183B1 EP 2875183 B1 EP2875183 B1 EP 2875183B1 EP 13734777 A EP13734777 A EP 13734777A EP 2875183 B1 EP2875183 B1 EP 2875183B1
Authority
EP
European Patent Office
Prior art keywords
standpipe
screen
forming unit
sheet forming
installation according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13734777.9A
Other languages
German (de)
French (fr)
Other versions
EP2875183A1 (en
Inventor
Herbert Aust
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2875183A1 publication Critical patent/EP2875183A1/en
Application granted granted Critical
Publication of EP2875183B1 publication Critical patent/EP2875183B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/66Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00Complete machines for making continuous webs of paper
    • D21F9/04Complete machines for making continuous webs of paper of the cylinder type
    • D21F9/043Complete machines for making continuous webs of paper of the cylinder type with immersed cylinder

Definitions

  • the invention relates to a system for producing security paper from a pulp suspension containing safety fibers, which is guided by a sorter to a sheet forming unit with overflow.
  • the object of the invention is therefore to reduce the loss of security fibers with the least possible effort.
  • the object has been achieved in that the overflow of the sheet forming unit is passed into a standpipe, which is arranged between the sorter and the sheet forming unit and the security fibers of the pulp suspension are added only after the sorter. This ensures that at least the majority of the security fibers is not passed through the sorter, which already significantly reduces the loss of security fibers. If returns of the sheet forming unit are conducted in this standpipe, so For example, the security fibers not picked up from the paper can be completely kept in the circuit between the starlight tube and the sheet forming unit.
  • a pump should be arranged between the standpipe and the sheet forming unit.
  • the flow rate of the pulp suspension at the inlet of the pump should be between 1 and 1.5 m / s. Since this pump also provides additional turbulence and mixing, it is advantageous if the safety fibers of the pulp suspension between this standpipe and the pump are added.
  • the sorter should be the last sorter before the sheet forming unit. Compared to the prior art, the overflow and return of the sheet forming unit are no longer guided by the sorter, so that it can be made smaller and thus cheaper.
  • the invention is not limited thereto.
  • the rotating round screen partially dips into the pulp suspension, whereby liquid is sucked into the interior of the round screen. In this way comes from on the surface of the round screen to a densification of the pulp and ultimately to the formation of the paper web. After emergence of the round screen from the pulp suspension, the paper web can be led away from a removal belt from the round screen.
  • the sorter In order to ensure the required flow rate of the pulp suspension and thus the required throughput at the inlet of the pump
  • the sorter should be controlled according to the suspension level in the standpipe. To ensure the most constant possible conditions in the sheet formation, the sorter led to the standpipe amount of pulp suspension should be so large that adjusts an approximately constant suspension level in the standpipe.
  • the regulation of the suspension level in the standpipe can be considerably simplified if the cross section of the standpipe widens upwards from the outlet.
  • the most highly consistent pulp suspension should be diluted, which is preferably done with process water, which is abundant in the paper machine in the form of white water.
  • a further standpipe is arranged in front of the sorter, in which the highly consistent pulp suspension and the white water are passed.
  • a further pump should be arranged between the further standpipe and the sorter. This additional effort is more than offset by the smaller sorter and the avoidance of losses of safety fibers.
  • the coming from a, for example, equipped with hydrocyclones cleaning plant pulp suspension 1 is injected for dilution in a standpipe 9, in which also white water 10 is passed from a white water tank.
  • the white water 10 accumulates in the treatment of the pulp suspension 1, but also in the production of the paper web.
  • the diluted pulp suspension 1 passes from a pump 11 conveyed to a sorter 6, in which the contaminants are sorted out by means of a sieve with holes or slots. From this sorter 6 the accept is passed into a following standpipe 5, in which the pulp suspension 1 is mixed with the resulting in a downstream sheet forming unit 4 as overflow 3 and return 7 parts of the pulp suspension 1. From the bottom outlet of this open-topped standpipe 5, the pulp suspension 1 is then conveyed via a pump 8 to the sheet forming unit 4. In this case, the pulp suspension 1 between this standpipe 5 and this pump 8 colored or fluorescent security fibers with a length between 4 and 8 mm for the formation of security paper, such as banknotes or the like. attached. The following pump 8 ensures a sufficient mixing.
  • the sorter 6, i. whose passage is controlled so that the suspension level in the following standpipe 5 remains approximately constant.
  • the cross section in the standpipe 5 increases considerably from the outlet to the top.
  • the flow rate of the pulp suspension at the inlet of the pump 8 should be between 1 and 1.5 m / s. Accordingly, the standpipe 5 is to be dimensioned.
  • the sheet forming unit 4 is designed as a rotary screen system of known design.
  • the rotating, cylindrical circular sieve 12 with a horizontal axis of rotation partially dips into a container 13 with the pulp suspension 1.
  • the Liquid is sucked into the circular sieve 12 and guided as white water 10 in the white water tank.
  • the pulp densifies on the surface of the round wire 12, which leads to the formation of the paper web.
  • the formed paper web is available after emergence from the pulp suspension 1 and can be removed from an air-permeable removal belt 14 in the form of a sieve or felt from the round screen 12.

Landscapes

  • Paper (AREA)

Description

Die Erfindung betrifft eine Anlage zur Herstellung von Sicherheitspapier aus einer, Sicherheitsfasern enthaltenden Faserstoffsuspension, welche von einem Sortierer zu einer Blattbildungseinheit mit Überlauf geführt wird.The invention relates to a system for producing security paper from a pulp suspension containing safety fibers, which is guided by a sorter to a sheet forming unit with overflow.

Es ist seit langem bekannt, die Fälschungssicherheit von Dokumenten, Banknoten o.ä. durch die Einbettung von Sicherheitsfaser in die Papierbahn zu erhöhen. Hierzu werden die Sicherheitsfasern der Faserstoffsuspension meist vor der Blattbildung beigemischt (vgl. z.B. WO 2005/003458 A1 ).
Die bei der Blattbildung anfallenden Über- und Rückläufe werden gegenwärtig mit dem Gutstoff der Cleaneranlage, den Sicherheitsfasern und dem Siebwasser gemischt und zur Ausschleusung von Störstoffen durch einen Sortierer geführt. Mit den Störstoffen werden jedoch häufig auch die relativ teuren Sicherheitsfasern aussortiert.
It has long been known that counterfeit security of documents, banknotes or similar. by embedding safety fiber in the paper web. For this purpose, the safety fibers of the pulp suspension are usually added before sheet formation (cf., for example WO 2005/003458 A1 ).
The resulting in the sheet formation over and returns are currently mixed with the accepts of Cleaneranlage, the safety fibers and the white water and led to the discharge of impurities through a sorter. With the impurities but often the relatively expensive safety fibers are sorted out.

Die Aufgabe der Erfindung ist es daher den Verlust an Sicherheitsfasern mit möglichst geringem Aufwand zu vermindern.The object of the invention is therefore to reduce the loss of security fibers with the least possible effort.

Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass der Überlauf der Blattbildungseinheit in ein Standrohr geleitet wird, welches zwischen dem Sortierer und der Blattbildungseinheit angeordnet ist und die Sicherheitsfasern der Faserstoffsuspension erst nach dem Sortierer zugegeben werden.
Hierdurch wird sichergestellt, dass zumindest der Hauptteil der Sicherheitsfasern nicht durch den Sortierer geführt wird, was die Verluste an Sicherheitsfasern bereits erheblich reduziert.
Falls in dieses Standrohr auch Rückläufe der Blattbildungseinheit geleitet werden, so können die nicht vom Papier aufgenommenen Sicherheitsfasern vollständig im Kreislauf zwischen Staridrohr und Blattbildungseinheit gehalten werden.
According to the invention the object has been achieved in that the overflow of the sheet forming unit is passed into a standpipe, which is arranged between the sorter and the sheet forming unit and the security fibers of the pulp suspension are added only after the sorter.
This ensures that at least the majority of the security fibers is not passed through the sorter, which already significantly reduces the loss of security fibers.
If returns of the sheet forming unit are conducted in this standpipe, so For example, the security fibers not picked up from the paper can be completely kept in the circuit between the starlight tube and the sheet forming unit.

Um die für die Blattbildungseinheit erforderliche Zuflussmenge an Faserstoffsuspension gewährleisten zu können, sollte zwischen dem Standrohr und der Blattbildungseinheit eine Pumpe angeordnet sein. Zwecks guter Durchmischung sollte die Fließgeschwindigkeit der Faserstoffsuspension am Einlauf der Pumpe zwischen 1 und 1,5 m/s liegen.
Da diese Pumpe auch für eine zusätzliche Verwirbelung und Vermischung sorgt, ist es hierbei von Vorteil, wenn die Sicherheitsfasern der Faserstoffsuspension zwischen diesem Standrohr und der Pumpe zugegeben werden.
In order to ensure the required amount of pulp suspension for the sheet forming unit, a pump should be arranged between the standpipe and the sheet forming unit. For good mixing, the flow rate of the pulp suspension at the inlet of the pump should be between 1 and 1.5 m / s.
Since this pump also provides additional turbulence and mixing, it is advantageous if the safety fibers of the pulp suspension between this standpipe and the pump are added.

Zur Minimierung des Aufwands und zur Vermeidung von Faserverlusten sollte der Sortierer der letzte Sortierer vor der Blattbildungseinheit sein. Gegenüber dem Stand der Technik werden die Über- und Rückläufe der Blattbildungseinheit nicht mehr durch den Sortierer geführt, so dass dieser kleiner und somit kostengünstiger ausgeführt werden kann.To minimize the expense and avoid fiber losses, the sorter should be the last sorter before the sheet forming unit. Compared to the prior art, the overflow and return of the sheet forming unit are no longer guided by the sorter, so that it can be made smaller and thus cheaper.

Als Blattbildungseinheit haben sich zur Herstellung von Sicherheitspapier Rundsiebanlagen bewährt, wobei die Erfindung nicht darauf beschränkt ist.
Bei Rundsiebanlagen taucht das rotierende Rundsieb teilweise in die Faserstoffsuspension ein, wobei Flüssigkeit in das Innere des Rundsiebes gesaugt wird. Auf diese Weise kommt aus auf der Oberfläche des Rundsiebes zu einer Verdichtung des Faserstoffs und letztendlich zur Bildung der Papierbahn. Nach dem Auftauchen des Rundsiebes aus der Faserstoffsuspension kann die Papierbahn von einem Abnahmeband vom Rundsieb weggeführt werden.
As a sheet forming unit Rundsiebanlagen have been proven for the production of security paper, the invention is not limited thereto.
In rotary screening machines, the rotating round screen partially dips into the pulp suspension, whereby liquid is sucked into the interior of the round screen. In this way comes from on the surface of the round screen to a densification of the pulp and ultimately to the formation of the paper web. After emergence of the round screen from the pulp suspension, the paper web can be led away from a removal belt from the round screen.

Um am Einlauf der Pumpe die erforderliche Fließgeschwindigkeit der Faserstoffsuspension und damit auch den erforderlichen Durchsatz gewährleisten zu können, sollte der Sortierer in Abhängigkeit vom Suspensionsniveau im Standrohr gesteuert werden. Zur Gewährleistung möglichst konstanter Verhältnisse bei der Blattbildung sollte die vom Sortierer zum Standrohr geführte Menge an Faserstoffsuspension so groß sein, dass sich im Standrohr ein etwa konstantes Suspensionsniveau einstellt.
Die Regelung des Suspensionsniveaus im Standrohr kann erheblich vereinfacht werden, wenn sich der Querschnitt des Standrohres vom Auslass nach oben erweitert.
Vor dem Sortierer sollte die meist hochkonsistente Faserstoffsuspension verdünnt werden, was vorzugsweise mit Prozesswasser, welches reichlich in der Papiermaschine in Form von Siebwasser anfällt, erfolgt.
Hierzu ist es von Vorteil, wenn vor dem Sortierer ein weiteres Standrohr angeordnet ist, in welches die hochkonsistente Faserstoffsuspension und das Siebwasser geleitet werden. Außerdem sollte zwischen dem weiteren Standrohr und dem Sortierer eine weitere Pumpe angeordnet werden. Dieser Mehraufwand wird durch den kleineren Sortierer und die Vermeidung der Verluste an Sicherheitsfasern mehr als ausgeglichen.
In order to ensure the required flow rate of the pulp suspension and thus the required throughput at the inlet of the pump The sorter should be controlled according to the suspension level in the standpipe. To ensure the most constant possible conditions in the sheet formation, the sorter led to the standpipe amount of pulp suspension should be so large that adjusts an approximately constant suspension level in the standpipe.
The regulation of the suspension level in the standpipe can be considerably simplified if the cross section of the standpipe widens upwards from the outlet.
In front of the sorter, the most highly consistent pulp suspension should be diluted, which is preferably done with process water, which is abundant in the paper machine in the form of white water.
For this purpose, it is advantageous if a further standpipe is arranged in front of the sorter, in which the highly consistent pulp suspension and the white water are passed. In addition, a further pump should be arranged between the further standpipe and the sorter. This additional effort is more than offset by the smaller sorter and the avoidance of losses of safety fibers.

Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt die Figur einen schematischen Querschnitt durch eine Anlage zur Behandlung einer Faserstoffsuspension 1 mit Sicherheitsfasern 2.The invention will be explained in more detail with reference to an exemplary embodiment. In the accompanying drawing, the figure shows a schematic cross section through a plant for treating a pulp suspension 1 with safety fibers. 2

Die von einer, beispielsweise mit Hydrozyklonen bestückten Reinigungsanlage kommende Faserstoffsuspension 1 wird zur Verdünnung in ein Standrohr 9 eingedüst, in welches auch Siebwasser 10 aus einem Siebwasserbehälter geleitet wird. Das Siebwasser 10 fällt bei der Behandlung der Faserstoffsuspension 1, aber auch bei der Herstellung der Papierbahn an.The coming from a, for example, equipped with hydrocyclones cleaning plant pulp suspension 1 is injected for dilution in a standpipe 9, in which also white water 10 is passed from a white water tank. The white water 10 accumulates in the treatment of the pulp suspension 1, but also in the production of the paper web.

Damit gelingt es nicht nur den Einsatz von Frischwasser zu minimieren sondern auch die im Siebwasser 10 enthaltenen Fasern einer Wiederverwendung zuzuführen.This not only minimizes the use of fresh water but also succeeds to supply the fibers contained in the white water 10 for reuse.

Von diesem Standrohr 9 gelangt die verdünnte Faserstoffsuspension 1 von einer Pumpe 11 gefördert zu einem Sortierer 6, in dem die Störstoffe mittels eines Siebes mit Löchern oder Schlitzen aussortiert werden.
Von diesem Sortierer 6 wird der Gutstoff in ein folgendes Standrohr 5 geleitet, in dem die Faserstoffsuspension 1 mit den in einer nachgeschalteten Blattbildungseinheit 4 als Überlauf 3 und Rücklauf 7 anfallenden Teilen der Faserstoffsuspension 1 gemischt wird.
Vom unten liegenden Auslauf dieses oben offenen Standrohres 5 wird die Faserstoffsuspension 1 dann über eine Pumpe 8 zur Blattbildungseinheit 4 gefördert. Dabei werden der Faserstoffsuspension 1 zwischen diesem Standrohr 5 und dieser Pumpe 8 farbige oder floreszierende Sicherheitsfasern mit einer Länge zwischen 4 und 8 mm zur Bildung von Sicherheitspapier, wie Banknoten o.ä. beigefügt. Die nachfolgende Pumpe 8 sorgt hierbei für eine ausreichende Vermischung.
From this standpipe 9, the diluted pulp suspension 1 passes from a pump 11 conveyed to a sorter 6, in which the contaminants are sorted out by means of a sieve with holes or slots.
From this sorter 6 the accept is passed into a following standpipe 5, in which the pulp suspension 1 is mixed with the resulting in a downstream sheet forming unit 4 as overflow 3 and return 7 parts of the pulp suspension 1.
From the bottom outlet of this open-topped standpipe 5, the pulp suspension 1 is then conveyed via a pump 8 to the sheet forming unit 4. In this case, the pulp suspension 1 between this standpipe 5 and this pump 8 colored or fluorescent security fibers with a length between 4 and 8 mm for the formation of security paper, such as banknotes or the like. attached. The following pump 8 ensures a sufficient mixing.

Zur Gewährleistung konstanter Verhältnisse bei der Blattbildungseinheit 4 wird der Sortierer 6, d.h. dessen Durchlauf so gesteuert, dass das Suspensionsniveau im folgenden Standrohr 5 etwa konstant bleibt. Um dies zu erleichtern, vergrößert sich der Querschnitt im Standrohr 5 ausgehend vom Auslauf nach oben erheblich.To ensure constant conditions in the sheet forming unit 4, the sorter 6, i. whose passage is controlled so that the suspension level in the following standpipe 5 remains approximately constant. To facilitate this, the cross section in the standpipe 5 increases considerably from the outlet to the top.

Zwecks guter Durchmischung sollte die Fließgeschwindigkeit der Faserstoffsuspension am Einlauf der Pumpe 8 zwischen 1 und 1,5 m/s liegen. Dementsprechend ist das Standrohr 5 zu dimensionieren.For good mixing, the flow rate of the pulp suspension at the inlet of the pump 8 should be between 1 and 1.5 m / s. Accordingly, the standpipe 5 is to be dimensioned.

Die Blattbildungseinheit 4 ist als Rundsiebanlage bekannter Ausführung ausgebildet. Hierbei taucht das rotierende, zylindrische Rundsieb 12 mit waagerechter rotationsachse teilweise in einen Behälter 13 mit der Faserstoffsuspension 1 ein. Die Flüssigkeit wird dabei in das Rundsieb 12 gesaugt und als Siebwasser 10 in den Siebwasserbehälter geführt.
Infolge des Ansaugens von Flüssigkeit verdichtet sich der Faserstoff auf der Oberfläche des Rundsiebes 12, was zur Bildung der Papierbahn führt.
Wegen der Rotation des Rundsiebes 12 wird die gebildete Papierbahn nach dem Auftauchen aus der Faserstoffsuspension 1 verfügbar und kann von einem luftdurchlässigen Abnahmeband 14 in Form eines Siebes oder Filzes vom Rundsieb 12 abgenommen werden. Zur Fixierung der Papierbahn am Abnahmeband 14 aber auch zur Entwässerung wird das Abnahmeband 14 nach der Übernahme der Papierbahn an Saugkästen 15 vorbeigeführt.
Im Bereich der Zuführung der Faserstoffsuspension 1 in den Behälter 13 der Rundsiebanlage - auch als Stoffauflauf 16 bezeichnet - entstehen oft Überschüsse die seitlich als Rücklauf 7 zum Standrohr 5 in die Nähe des Auslaufs zurückgeführt werden.
Am gegenüberliegenden Ende des Behälters 13 wird der überschüssige Teil der Faserstoffsuspension 1 in Form des Überlaufs 3 allerdings in den oberen Teil des Standrohres 5 zurückgeleitet. Der Überlauf 3 kann bei derartigen Anlagen durchaus 40 bis 75 % der in den Behälter 13 geführten Menge an Faserstoffsuspension 1 entsprechen.
Durch diese Kreislaufbildung zwischen Standrohr 5, Zuführung der Sicherheitsfasern 2 und Blattbildungseinheit 4 können die Verluste an Sicherheitsfasern 2 auf ein Minimum reduziert werden. Lediglich kleinste Mengen an Sicherheitsfasern 2 können nun noch über das Siebwasser 10 der nachfolgenden Papiermaschine vor den Sortierer 6 gelangen.
The sheet forming unit 4 is designed as a rotary screen system of known design. In this case, the rotating, cylindrical circular sieve 12 with a horizontal axis of rotation partially dips into a container 13 with the pulp suspension 1. The Liquid is sucked into the circular sieve 12 and guided as white water 10 in the white water tank.
As a result of the suction of liquid, the pulp densifies on the surface of the round wire 12, which leads to the formation of the paper web.
Because of the rotation of the round screen 12, the formed paper web is available after emergence from the pulp suspension 1 and can be removed from an air-permeable removal belt 14 in the form of a sieve or felt from the round screen 12. For fixing the paper web on the removal belt 14 but also for dewatering the removal belt 14 is guided past after taking over the paper web to suction boxes 15.
In the field of feeding the pulp suspension 1 in the container 13 of the rotary screen - also referred to as headbox 16 - often arise surpluses which are laterally recycled as return 7 to the standpipe 5 in the vicinity of the outlet.
At the opposite end of the container 13, however, the excess part of the pulp suspension 1 in the form of the overflow 3 is returned to the upper part of the standpipe 5. The overflow 3 can correspond to 40 to 75% of the guided into the container 13 amount of pulp suspension 1 in such systems quite.
Through this circulation between standpipe 5, feeding the security fibers 2 and sheet forming unit 4, the losses of security fibers 2 can be reduced to a minimum. Only the smallest amounts of security fibers 2 can now reach the sorter 6 via the white water 10 of the subsequent paper machine.

Claims (12)

  1. Installation for manufacturing security paper from a fibrous suspension (1) which contains security fibres (2) and which is led from a screen (6) to a sheet forming unit (4) with overflow (3),
    characterized in that
    the overflow (3) from the sheet forming unit (4) is led into a standpipe (5), which is arranged between the screen (6) and the sheet forming unit (4), and the security fibres (2) are added to the fibrous suspension (1) only after the screen (6).
  2. Installation according to Claim 1,
    characterized in that
    returns (7) from the sheet forming unit (4) are also led into the standpipe (5).
  3. Installation according to Claim 1 or 2,
    characterized in that
    a pump (8) is arranged between standpipe (5) and sheet forming unit (4).
  4. Installation according to one of the preceding claims,
    characterized in that
    the security fibres (2) are added to the fibrous suspension (1) between the standpipe (5) and the pump (8).
  5. Installation according to one of the preceding claims,
    characterized in that
    the cross section of the standpipe (5) widens upwards.
  6. Installation according to one of the preceding claims,
    characterized in that
    the screen (6) is the last screen (6) before the sheet forming unit (4).
  7. Installation according to one of the preceding claims,
    characterized in that
    the sheet forming unit (4) is implemented as a cylinder mould installation.
  8. Installation according to one of the preceding claims,
    characterized in that
    before the screen (6) there is arranged a further standpipe (9), into which fibrous suspension (1) and white water (10) are led.
  9. Installation according to Claim 8,
    characterized in that
    there is a further pump (11) between the further standpipe (9) and the screen (6).
  10. Method for operating the installation according to one of the preceding claims,
    characterized in that
    the screen (6) is controlled as a function of the level of the suspension in the following standpipe (5).
  11. Method according to Claim 10,
    characterized in that
    the quantity of fibrous suspension (1) led from the screen (6) to the following standpipe (5) is sufficiently large that an approximately constant level of the suspension is established in the following standpipe (5).
  12. Method according to Claim 10 or 11,
    characterized in that
    the flow velocity of the fibrous suspension (1) at the inlet to the pump (8) following the screen (6) is between 1 and 1.5 m/s.
EP13734777.9A 2012-07-18 2013-07-09 Installation for manufacturing security paper Not-in-force EP2875183B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210212529 DE102012212529A1 (en) 2012-07-18 2012-07-18 Security paper-flow system
PCT/EP2013/064421 WO2014012814A1 (en) 2012-07-18 2013-07-09 Constant part for a security paper

Publications (2)

Publication Number Publication Date
EP2875183A1 EP2875183A1 (en) 2015-05-27
EP2875183B1 true EP2875183B1 (en) 2016-04-06

Family

ID=48748249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13734777.9A Not-in-force EP2875183B1 (en) 2012-07-18 2013-07-09 Installation for manufacturing security paper

Country Status (4)

Country Link
EP (1) EP2875183B1 (en)
CN (1) CN104520503A (en)
DE (1) DE102012212529A1 (en)
WO (1) WO2014012814A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102597173A (en) 2009-09-08 2012-07-18 俄亥俄州立大学研究基金会 Synthetic fuels and chemicals production with in-situ CO2 capture
BE1022912B1 (en) * 2015-06-29 2016-10-13 Eternit Nv A method for controlling the liquid level in the premixing unit of a hatschekmachine
DE102019111122A1 (en) * 2019-04-30 2020-11-05 Voith Patent Gmbh Injector nozzle

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412771A (en) * 1938-09-27 1946-12-17 Philip H Goldsmith Method of making paper on cylinder mold type paper machines
FR1583312A (en) * 1968-08-21 1969-10-24
US4146425A (en) * 1974-10-02 1979-03-27 Sulzer Brothers Limited Papermaking machine headbox having a feed channel and an adjacent overflow sump
ES2060488B1 (en) * 1991-11-28 1995-12-16 Nacional Moneda Timbre INSTALLATION FOR THE MANUFACTURE OF SAFETY DOCUMENTS AND SAFETY DOCUMENTS OBTAINED WITH SUCH INSTALLATION.
EP0969142B1 (en) * 1998-06-29 2004-03-24 Voith Paper Patent GmbH Process and device for mixing stock suspensions
DE19859770A1 (en) * 1998-06-29 1999-12-30 Voith Sulzer Papiertech Patent Method and device for mixing suspension of substances
DE10050109A1 (en) * 2000-10-09 2002-04-11 Voith Paper Patent Gmbh Preparation of a fiber suspension, as paper/cardboard pulp, has a mixing pipe for the main mixed suspension flow with an elbow where an additional suspension is injected with a bulking agent
CH696744A5 (en) * 2003-07-07 2007-11-15 Landqart Security paper and method for its production.
KR100761581B1 (en) * 2003-12-23 2007-10-04 페더럴 스테이트 유니타리 엔터프라이즈 “고즈낙” Method for producing fraud-proof value paper, and value paper produced by said method
DE102004051327B4 (en) * 2004-10-21 2007-09-27 Voith Patent Gmbh Method for degassing and feeding a pulp suspension to a headbox and degassing
GB0514327D0 (en) * 2005-07-13 2005-08-17 Harris Colin A Producing security paper
DE102009010037A1 (en) * 2009-02-21 2010-08-26 Voith Patent Gmbh Arrangement for reducing pressure
DE202009018662U1 (en) * 2009-05-12 2012-07-16 Voith Patent Gmbh constant part
CN102505567A (en) * 2011-10-26 2012-06-20 山东凯丽特种纸股份有限公司 Antifalsification paper with security blocks and production method thereof

Also Published As

Publication number Publication date
EP2875183A1 (en) 2015-05-27
CN104520503A (en) 2015-04-15
WO2014012814A1 (en) 2014-01-23
DE102012212529A1 (en) 2014-01-23

Similar Documents

Publication Publication Date Title
DE69919175T2 (en) PROCESS FOR SHORT CIRCULATION IN A PAPER OR PAPER MACHINE
DE102006036018B3 (en) Supplying fiber suspension, formed by diluting thick suspension, to pulp inlet of papermaking machine, by pumping suspension from pulp feed pump through sorting plant
EP1826314A1 (en) Process for pulping and cleaning of papermaking raw materials containing impurities
EP2875183B1 (en) Installation for manufacturing security paper
EP2761080B1 (en) Operating method for a stock preparation zone
EP1759057A1 (en) Method for producing a paper web and paper-making machine
DE10351292A1 (en) Method for loading a pulp suspension and arrangement for carrying out the method
EP2598690B1 (en) Approach system of a machine for producing a fibrous web
DE102010030996A1 (en) Metal ion
DE102005016192A1 (en) Process for dissolving and cleaning contaminant-containing paper tubes
EP1860231A2 (en) Method and device for cleaning paper raw materials containing impurities
AT512857B1 (en) Process for the dissolution of fibrous materials
AT518294B1 (en) paper machine
DE69916127T2 (en) SHORT CIRCUIT METHOD
EP3004456B1 (en) Approach system device
EP3398671A1 (en) Device for the separation of solid particles from suspensions
EP3559342B1 (en) System for process water treatment
DE102012023258A1 (en) Processor used in paper industry for processing e.g. waste paper, has output for free fiber and solutes, which is arranged under the separating device, and discharge coil which is arranged above the separating device
DE10337944A1 (en) Process to remove gas from fibrous suspension in paper or carton manufacturing assembly
DE60027782T3 (en) DEVICE FOR SEPARATING A FIBER BREAST SUSPENSION
DE202014010533U1 (en) Approach flow sorting
WO2010057755A1 (en) Constant part having decoupling
WO2009021803A1 (en) Constant part for a paper machine
WO2009021802A1 (en) Constant part for a paper machine
DE102010042604A1 (en) Sheet forming unit for producing a material web and method for operating the sheet forming unit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150218

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: AUST, HERBERT

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20151125

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 787974

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160415

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013002507

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: MP

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160806

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160808

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160707

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013002507

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20170110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160731

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160801

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170331

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160709

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20210722

Year of fee payment: 9

Ref country code: FI

Payment date: 20210722

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210721

Year of fee payment: 9

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502013002507

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 787974

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220709

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230201